Crock-Pot Ranch Beans

Ingredients

• 1 lb. hamburger, browned
• 1 c. chopped onions
• 1 (1 lb.) can pork and beans
• 1 (1 lb.) can kidney beans
• 1 (1 lb.) can butter beans
• 1 tsp. salt
• 2 tsp. vinegar
• 2 tsp. prepared mustard
• 1 c. catsup
• 3/4 c. brown sugar
• 1/2 c. green pepper, chopped